Modular barrier system for satisfying needs unique to a specific user

ABSTRACT

Provided are components, a system, and method of implementing the system, for controlling access and egress. In a preferred embodiment, the user&#39;s requirements are considered in providing a properly scaled barrier for such varied uses as security, safety, order, privacy, and discipline. In one embodiment, pre-manufactured panels and connectors are delivered to a site that has been properly prepared for installation of the system. Local materials may be used for the panels in some cases. The panels and connectors may be assembled quickly by unskilled labor and, in some embodiments, the barrier just as quickly dismantled or repaired as necessary. One embodiment may be used as a temporary or emergency solution to access control. Another embodiment may be used in a residential setting, providing storage in some installations. In all embodiments, accessories for enhancing effectiveness may be installed on or within the barrier.

STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

[0001] The invention described herein may be manufactured and used by or for the government of the United States of America for governmental purposes without the payment of any royalties thereon or therefor.

FIELD OF THE INVENTION

[0002] The invention relates to barrier systems and methods of deploying them. More particularly, it applies to systems that are easy to construct, resistant to damage, and modular for addressing various requirements, such as a security system that provides a range of deterrents that attach at the top of a barrier.

BACKGROUND

[0003] A requirement for a security barrier was announced by the US Border Patrol. They needed a barrier able to be built from readily available materials. Further, it must be easy to build (not requiring skilled labor) and modular to adapt to varying local conditions and changing scenarios. A preferred embodiment of the present invention is designed for use under various applications. Thus, initial design criteria were based upon the needs of the U.S. Border Patrol for a barrier to use under a variety of conditions to control border access. Criteria included:

[0004] It must be solid to hamper the passing of drugs across it and prevent penetration of bullets to the other side.

[0005] It must be robust against degradation of its function while maintaining its structural integrity. Degradation sources include scaling, burrowing under, ramming by vehicles, cutting, and repeated hammering and chipping.

[0006] It must inhibit immediate traversal to facilitate apprehension of the transgressor.

[0007] It must be maintained at relatively low cost with maintenance easy to perform quickly in order to minimize exposure of maintenance personnel.

[0008] It must be usable in all types of geography, including hilly and rough terrain.

[0009] It must “work well and last a long time” irrespective of the type and frequency of repairs.

[0010] It must minimize the danger to the Border Patrol and other personnel working at the border.

[0011] Because the Border Patrol cannot control what is done on the “foreign side” of the barrier, design criteria must account for this limitation. Of course, such a barrier might be adapted for other uses, especially those for which less stringent requirements may exist.

[0012] Previous barrier designs used to aid the Border Patrol have failed to control access across the border. Various designs of wire mesh fences, commonly used in prisons and schools, have been easily destroyed by transgressors. A barrier constructed from surplus temporary airfield landing mat is currently installed between San Diego, Calif. and Tijuana, Mexico. On the southern border with Mexico, fencing is installed only near population centers. Hence, only as many as 98 Km (60 miles) of the more than 3100 Km (1900 miles) is fenced. The excess steel landing mat will be exhausted long before any significant amount of border is fenced. The steel landing mat barrier is difficult to maintain and is easily circumvented by scaling or digging under the fence, sawing, use of a cutting torch, ramming, etc.

[0013] A bollard fence design has been installed as both a primary and secondary barrier (a second barrier located north of the primary barrier) at the same location. This bollard fence is a staggered line of vertically oriented concrete posts spaced at 10-12.7 cm (45 inches) and embedded in concrete. The posts are vulnerable to chipping, require concrete forms that must be installed by skilled contractors, and may be vandalized easily while curing. Transgressors can both see through and reach through the bollards, allowing them to pass drugs and even shoot through them. Proposals to enclose the bollards in steel tubes may make them less vulnerable to attack. This still allows transgressors to reach through the fence and still requires skilled contractors to construct and repair them.

[0014] In selected areas there are also impediments at low heights for deterring vehicle traffic. A fence has been installed between El Paso, Tex. and Mexico that is aesthetically appealing, but not resistant to vandalism. The fence is constructed of lightweight panels a few inches thick, mounted on support poles a few inches in diameter. Attacks by blunt instruments can easily create gaping holes in the fence. Ramming by a vehicle can severely damage the fence. In addition, resultant openings allow transgressors to transfer illicit items.

[0015] Existing designs fail to meet needs of the Border Patrol at a reasonable cost over their life cycle. A preferred embodiment of the present invention provides a cost effective solid barrier to human and vehicular intrusion that meets all the requirements of the Border Patrol and similarly situated agencies and organizations and may be adapted for commercial or consumer use.

SUMMARY

[0016] A preferred embodiment of the present invention is an economical multi-purpose barrier and method for its use in applications such as a primary barrier at an international border, security for military installations, and general security, safety or privacy applications in police, industrial, recreational, commercial, environmental, or residential applications. In its most durable embodiment, the barrier is solid and highly resistant to damage. A preferred embodiment of the present invention combines the properties of a high strength panel, such as steel or a high strength polymer, and a masonry wall, such as concrete or pumice-crete. The exterior of this embodiment is comprised of interlocking panels that serve as:

[0017] armor against attack (both above and below grade);

[0018] enclosures for in-fill material, such as fill dirt, sand, or concrete; and

[0019] a mechanism for transferring an external force applied against any individual section to all neighboring sections.

[0020] In this embodiment, the exterior panels have interlocking joints that resist physical intrusion without the addition of in-fill material. The addition of in-fill material provides additional support for the connections, thus providing additional protection against attack. Besides providing additional mass against ramming, solid in-fill also provides a formidable barrier against intrusion should exterior panels be removed or damaged. The external panels may be embedded in the ground, providing significant resistance to ramming, tipping, or burrowing beneath the barrier. Additionally, the barrier may be anchored internally to resist tipping forces applied near its top.

[0021] A preferred embodiment of the present invention is installed quickly and easily. Further, should the need arise, it may be repaired without the need of special tools, heavy equipment, or concrete forms. In one embodiment, a trench of suitable dimensions, such as approximately 0.9 m (3 ft) deep by 1.6 m (5 ft) wide, is dug the length of the section to be installed or the length of a reasonable portion of the entire boundary desired to be protected. After emplacing and connecting panel sections in the trench, a suitable in-fill material, such as concrete, is placed between the panels. To hold a cementitious mixture until setup, a temporary removable form may be used at one or both ends of a suitable length comprising one or more sections of the barrier. This form may be used with suitable soft material and left in place to comprise an expansion joint for the concrete. Deterrents may be affixed to the top of a completed section and secured on the “protected” side of the barrier by suitable means, such as welding, epoxy, mechanical fasteners, or combinations thereof. Alternatively, pre-connected (“protected” side and “transgressor” side) sections can be dropped into place in a trench as needed, the trench backfilled quickly, and the resultant barrier serve the same purpose as an “in-filled” section, at least temporarily.

[0022] Advantages of a preferred embodiment of the present invention that provides maximum resistance to an aggressive transgressor include:

[0023] prevents ready ingress by surface or sub-surface based transgressor;

[0024] requires greater effort and more time to breach than conventional designs;

[0025] makes penetration by a welding torch, chipping, cutting, or other mechanical means difficult and time-consuming;

[0026] provides no purchase for a person to breach the top from either direction because of its smooth barrier walls extending high above the ground at a steep angle since there are no external connections needed to be made when installing the panels; prevents transgressors from using it to survey an area because of the narrow width at its top together with optional detectors and deterrents that may be placed at its top;

[0027] optional deterrents may be used based on specific needs, locations, times and expected transgressors;

[0028] optional deterrents affixed to the top of a high version require a transgressor to work at an unsafe height at a risk of serious injury from a fall;

[0029] detectors and deterrents may be repaired on the protected side of the barrier below its maximum height, thus, shielding the workers from potential transgressors;

[0030] detectors and deterrents may not require urgent repair since the height, shape and texture of the barrier makes breaching more difficult than conventional systems;

[0031] repairs can be postponed since defeating the barrier's purpose requires both panels and the in-fill material to be removed or damaged;

[0032] use of interlocking high strength panels as permanent forms for the in-fill material and as a structural member of the barrier facilitates both rapid installation and rapid repair of the barrier;

[0033] may be installed over existing barriers, resulting in a barrier that uses existing structure as part of its “in-fill” material for providing added strength without incurring time and expense to remove the existing system; and

[0034] replacement panels may be welded or epoxied over any gaps in the barrier caused by major damage from sophisticated transgressors and new in-fill material quickly added to re-establish barrier integrity.

[0035] Further, all embodiments share the following advantages:

[0036] can be assembled easily by workers needing no special skills; low maintenance costs;

[0037] increased flexibility for use so that a less durable design may be applied to commercial, environmental, industrial or even residential use;

[0038] high reliability;

[0039] simplified design of alternate configurations to include mobile or temporary installations;

[0040] ability to use different modules at the top to meet specific requirements as they arise; and

[0041] ready upgradability to state-of-the-art modifications.

[0042] The design of a preferred embodiment of the present invention makes it adaptable in applications where conventional barriers cannot be used effectively, easily or economically. The simple design of the barrier allows the substitution of existing local materials for in-fill material in the construction of the barrier body. For example, sheet pile may be substituted for a panel. Rebar can replace connecting rods. Very large nuts or steel pipes cut into small sections can be welded to the panels to act as the connection between the connecting rods and panels. Where little or no in-fill material is used, the connecting rods can be oriented diagonally and secured with turnbuckles that can be locked down using double nuts. If sheet pile were attached or changed, the only design adjustment needed is the adaptation of the cover shell to the sheet pile shape.

[0043] Various intrusion detectors and deterrents may be attached to a preferred embodiment of the present invention so that it may be adapted readily to changing threats. Detectors and deterrents may include: wire mesh extensions; various detectors including pressure sensitive, motion, infrared, electromagnetic, and combinations thereof, surveillance devices using video, audio, RF and optical bands; and razor or whip wires. Further, anti-personnel deterrents such as pepper spray or CS gas could be activated by sensors. Military applications may use the same assortment as above and include detectors attached to lethal anti-personnel devices and shielded enclosures for use by heavily armed military personnel. In a commercial or residential setting, decorative plants may be added along the top. Further, in some applications where in-fill material is not used or used to fill only part of the void, parts of the panels used on sections of the barrier may be designed to be opened along one side for access to controls for deterrents or for storage of items such as tools, hoses, fertilizer, swimming pool equipment, etc.

[0044] Specific applications of a preferred embodiment of the present invention include vehicular barriers to deter terrorist car bomb attacks and a barrier rapidly constructed for use by the military in combat. The ability to construct a barrier using unskilled labor and to fill it with dirt, sand or stabilized earth (i.e., a bag of Portland cement is added to each cubic yard of dirt) makes it practical for military use where there may be limited availability of heavy equipment or concrete. Using a hardened filler, such as concrete or pumicecrete as formulated in U.S. Pat. No. 4,373,955, Lightweight Insulating Concrete, issued to Bouchard et al., the barrier is resistant to conventional munitions, such as bullets, shell shrapnel, and non-armor piercing shells. Further, a properly anchored barrier of appropriate size may prevent tracked vehicles from crossing the barrier unless an inordinate amount of time is taken to demolish it beforehand. Additionally, an embodiment may be installed over existing barriers. This results in a barrier that did not incur the cost of demolition of an existing ineffective or damaged barrier but can use this existing structure as part of its “in-fill” material for providing added strength. At the opposite end of its application spectrum, an embodiment may be used to contain domestic animals and pets or even as a part of a fence with built-in storage for a residence in an urban setting.

BRIEF DESCRIPTION OF DRAWINGS

[0045]FIG. 1 is an end view of a preferred embodiment of the present invention that shows all components assembled and installed for a primary barrier application.

[0046]FIG. 2 shows a perspective of three sets of assembled panels (sections) of FIG. 1 without any of the various physical deterrents that may be attached at the top of a preferred embodiment of the present invention.

[0047]FIG. 3 provides a top view of the panels, providing details of the interlocking flanges and the connectors used in a preferred embodiment of the present invention.

[0048]FIG. 4 depicts the components used for basic assembly of the frame used for a preferred embodiment of the present invention and illustrates the assembly steps for the panels shown in FIG. 2.

[0049]FIG. 5 illustrates passive deterrents that may be incorporated in a preferred embodiment of the present invention.

[0050]FIG. 6 illustrates aggressive deterrents that may be incorporated in a preferred embodiment of the present invention.

[0051]FIG. 7 illustrates lethal aggressive deterrents, coupled with sensors, which may be incorporated in a preferred embodiment of the present invention.

[0052]FIG. 8 illustrates a non-lethal deterrent system combined with sensor and alarm for a preferred embodiment of the present invention.

[0053]FIG. 9 illustrates a triangular cap of a preferred embodiment of the present invention.

[0054]FIG. 10 illustrates a rounded cap of a preferred embodiment of the present invention.

[0055]FIG. 11 illustrates an end view of an embodiment in which the angle of inclination is different for each of the panels comprising a section.

[0056]FIG. 12 is an end view of an embodiment such as represented in FIG. 11 having a top suitable for growing vegetation.

[0057]FIG. 13 is an end view of a section designed to be freestanding for use in applications where it may be disassembled and transported to another site.

[0058]FIG. 14 depicts a pair of panels, the braced connections thereto, and an access door in one of the panels, using the center reinforcing bar to mount a hinge for the access door.

[0059]FIG. 15 depicts some of the details for forming a flat sheet of material into a panel used in a preferred embodiment of the present invention.

[0060]FIG. 16 depicts a detail of a marker system that may be used with a preferred embodiment of the present invention.

DETAILED DESCRIPTION

[0061] Preferred embodiments of the present invention may be used to promote any one or a combination of the following: safety, security, privacy, discipline, and order. A preferred embodiment of the present invention envisions a universal design for a durable, reliable, easily constructed and maintained access and egress control system, many components of which may be modular to meet varying user requirements. One design features pairs of panels of high strength material that are joined via simple connectors to form an A-frame section, open at its top. These panels are normally much wider than they are thick and longer than they are wide, i.e., at least forty times wider than thick and at least twice as long as wide. However, maximum dimensions are determined by shipping and handling considerations. For example, a homeowner would probably feel comfortable with a 1.8 m×0.9 m (6 ft×3 ft) panel of 6.25 mm (¼ in) thickness or less, while a construction company could handle a much larger array. A heavy-duty barrier designed to resist encroachment by all but heavy equipment and tanks may use steel panels that are 4.6 m (15 ft) long by 0.9 m (3 ft) wide by 9.5 mm (⅜ in) thick, with a backing of in-fill material such as concrete. A panel of this size may be emplaced using four men if heavy equipment, such as a truck-mounted crane, is not available or the terrain is too rugged for deploying the equipment. To further insure against tipping this barrier, one may deploy at least 10% of its height in a trench dug for the purpose. For panels 4.6 m (15 ft) high deployed at an international border, a trench 0.9 m (3 ft) deep by 1.6 m (5 ft) wide suits the purpose, while backfilling the trench with concrete provides additional strength. Further, in one embodiment in which it is important to deter climbing, a steep angle is employed, e.g., inclining each panel toward the other only 7° from the vertical provides a sufficient base width to deter tipping while also making unassisted climbing impossible. The panels may be constructed of: steel, stainless steel, a metal alloy, aluminum, a polymer, a resin, a composite, a carbon fiber, a laminate of at least two of above said materials, and any combination thereof. Further, they may be treated to inhibit environmental degradation; e.g., an anodized surface, paint, or other protective coatings may be applied.

[0062] For a high barrier, these panels are placed with their longest dimension nearly vertical. A series of these A-frame sections are joined in an interlocking fashion, using interlocking flanges at each panel's longest (longitudinal) edges. The connecting rods may be simple metal rods bent 90° down (or adjusted as needed to accommodate individual installations) at each end to slip into a hole provided in a component located on the inside of each of the panels. There may be several of these connecting rods per section, depending on the strength requirements called out by the user. These rods may be made of rebar in various diameters, sized to fit the job. They may fit connecting points (slots or holes configured on the insides of the panels) that are reinforced by affixing a bar incorporating the slots or holes along a centerline of the panel used to receive all of the connecting rods.

[0063] One embodiment reinforces the A-frame sections by filling at least part of the volume between the panels with in-fill material. Use of indigenous material saves the cost of shipping while potentially providing local businesses with income. By inserting heavy-duty rods across the panels, the tendency for the panels to bulge out when the A-frame sections are filled with heavy in-fill material is minimized. The in-fill material may consist of: a solidified mixture, concrete, pumicecrete, dirt, sand, rock, rip-rap, rubble, inorganic material, aqueous solutions, and any combination thereof. For example, if to be used for a temporary application, such as an outdoor concert in a field, the barrier may be secured quickly by filling water bags internally positioned above a flange at the bottom of each section. Once filled, even partially with in-fill material, certain embodiments of the A-frame sections are capped using either a narrow rounded cap that inhibits any kind of purchase, should one wish to scale the barrier, or a triangular cap that facilitates adding accessory detectors and deterrents near the top of the completed barrier. These caps may interlock with flanges incorporated at the top ends of each of the panels comprising each section, thus facilitating set-up, maintenance, tear down, removal, and modification or upgrading of the barrier.

[0064] One alternative embodiment envisions no cap and the use of a soil mix at the very top of the in-fill material for growing “unfriendly” vegetation, e.g., thorny or dense heavy shrubs, along the top of the barrier. Proper cultivation may require drain holes to be drilled in the upper sections of the panels as well as irrigation hoses running the length of the barrier's top. At one end of the spectrum of barriers, one envisions panels as short as only 0.9 m (3 ft) high by 0.3 m (1 ft) wide and a mere 1.5 mm ({fraction (1/16)} in) in thickness for easy installation by a consumer to contain toddlers and domestic climbing animals, such as house cats, in a portion of a back yard, for example, while also providing a small growing area at the top for a privacy shrub or flowers. Another consumer application may provide for some sections to slide or open vertically on hinges, providing access to the interior of the barrier along one side so that items may be stored within, such as garden tools, hoses, folding outdoor furniture, children's toys, etc. In this way the need for large separate storage sheds may be minimized or eliminated.

[0065] In remote locations, or less developed countries, one may find that making one's own panels is necessary. The panel material may be sheet pile. Receivers for bent rebar connectors may include zinc-coated nuts, large washers, eyebolts, or short pieces of pipe welded to a bar, or multiple short lengths of bars, used as reinforcement along the center of the inner side of the sheet pile panel. Should the sheet pile flange (designed for vertical installation) prove to be unwieldy for easy installation of a neighboring panel via horizontal attachment, a wedge can be used to enlarge the flange so that a horizontal tug on the inserted panel will lock it to the existing section.

[0066] For ease of manufacture and control of inventory, one embodiment of the present invention envisions panels that are identical for each installation and symmetric with respect to their two sets of parallel sides when turned 180° in the plane in which they are to be installed. To further deter climbing, a preferred embodiment of the present invention has those panel sides that face outward smooth and in the same plane, i.e., free of protuberances or indentures by which an individual or animal may obtain a purchase.

[0067] Certain auxiliary devices may be mounted on some embodiments. In addition to those already listed, these include, but are not necessarily limited to: detectors, alarms, lighting, active deterrents, passive deterrents, and dye markers.

[0068] Detectors include those that detect disturbances by operating in ranges such as: audio frequencies, video frequencies, visible wavelengths, infrared wavelengths, ultraviolet wavelengths, radio frequencies, pressure, and combinations thereof.

[0069] Alarms may be silent, from a hard-wired or wireless system, to a central receiving station; audible such as a siren; sub-audible at levels that cause anxiety; visual, such as flood or strobe lights, and combinations thereof.

[0070] Lighting may be in the visible, infrared, or ultraviolet spectrum, and may be flood lighting, strobe lighting, scanned, and combinations thereof.

[0071] Passive deterrents may include, but are not necessarily limited to: wire mesh fencing, barbed wire, razor whip wire, concertina wire, and combinations thereof.

[0072] Active deterrents may include, but are not necessarily limited to: sensor-activated chemical sprays, sensor-activated munitions, electrically-charged wires, and high-powered electromagnetic devices.

[0073] Dye markers may include, but are not necessarily limited to: fluorescing stains facilitating unaided visibility at night, fluorescent dyes visible under ultraviolet light, and dyes visible by the use of infrared lenses.

[0074] A tailored preferred embodiment of the present invention is designed to meet a specific user's needs. A process of providing a preferred embodiment of the present invention may involve:

[0075] defining a user's requirements;

[0076] developing a design with built-in flexibility to meet the user's requirements;

[0077] acquiring materials for producing the design;

[0078] scheduling resources to build to the design;

[0079] building the design in situ;

[0080] acquiring resources to maintain the as-built structure, as necessary;

[0081] updating the design as a user's requirements dictate, as necessary; and

[0082] upgrading the as-built structure based on these updated needs and currently available technology, as necessary.

[0083] Of course, certain applications are generic to a large number of users or types of users, so that once this type of user has been identified and needs defined, this process need not be carried out for each fabrication and installation of a particular preferred embodiment of the present invention.

[0084] A method for building a preferred embodiment of the present invention includes:

[0085] preparing the surface upon which a preferred embodiment of the present invention is to be installed to a uniform grade;

[0086] acquiring and delivering necessary materials to a user's site to include panels, connectors, optional caps, optional auxiliary devices, and in-fill material, as necessary;

[0087] building a preferred embodiment of the present invention section by section by:

[0088] vertically positioning two panels along the axis that parallels edges of the panels with interlocking flanges, the sides of the panels having receptors facing opposite one another;

[0089] joining these panels in a single A-frame section configuration, open at its top, by tilting the panels toward each other and affixing appropriately sized connectors to the appropriate receptor on each panel;

[0090] building and interconnecting additional A-frame sections to achieve a desired length by tilting individual panels onto the started A-frame one at a time, pulling the new panel horizontally to interconnect the flanges, and completing the connection of appropriate connecting rods of the new two-panel section before proceeding with the next section;

[0091] optionally filling the volume between the sections at least part way to the top with in-fill material using end panels as necessary to contain the in-fill material at intervals determined by physical constraints, and at the terminus of the structure;

[0092] optionally capping the top with a cap; and

[0093] installing optional auxiliary devices.

[0094] Preparing the surface may include placing a preferred embodiment of the present invention in a trench having a uniform grade. A nominal depth may be at least the first 10% of height. The trench is backfilled after construction, which may include the option of filling at least part of the interior volume with in-fill material.

[0095] Further, an impermeable subterranean wall may be constructed vertically along the length of a preferred embodiment of the present invention and below its lowest point of resting.

[0096] A preferred embodiment of the present invention provides a barrier impeding both unassisted human and surface vehicle access. Because the fence is designed to result in an integrated whole that results in a structure that at any location is greater than the strength of any single component, this embodiment provides the following benefits:

[0097] provides a barrier, with optional subterranean foundation, that affords a reasonable response time to security personnel by resisting aggressive destruction by hand and power implements to include pneumatic hammers and related construction tools;

[0098] prevents breach by a vehicle of approximately 4000 lb. traveling at speeds up to 80 Km/h (50 mph);

[0099] prevents breach by tracked vehicles or heavy equipment from ramming through or driving over it when it is filled with in-fill material or anchored to underground walls or foundations, or any combination thereof;

[0100] impedes human access by scaling, climbing, grappling, or similar means by use of smooth nearly vertically inclined wall surfaces, extreme height, and auxiliary deterrents placed near its top;

[0101] impedes access by underground penetration due to embedding below ground level the presence of an underground wall that may be tied structurally to it, and combinations thereof;

[0102] impedes disassembly via damaging or removing connection joints or embedded connecting rods by shielding the joints with steel providing little or no purchase and using concrete or other material to fill the interior volume;

[0103] facilitates quick installation by providing components that are modular and able to be manufactured easily, able to be transported to the construction site in a compact configuration, and easy to be assembled in situ using unskilled labor;

[0104] facilitates assembly without the need to survey the installation site;

[0105] provides an initial barrier even with no in-fill material installed;

[0106] serves as a barrier before concrete used as in-fill is cured;

[0107] withstands a significant amount of damage, while maintaining its integrity, before repairs are necessary;

[0108] facilitates repair of voids quickly and easily by securing replacement cover plates or entire sections e.g., securing by mechanically securing, welding, gluing or using other means of attachment, and filling the voids with concrete or other solidifying in-fill material;

[0109] facilitates repair or replacement of entire sections from its protected side;

[0110] makes use of commercially available materials such as sheet pile, fiberglass, advanced polymer composites, rebar, or pipe to construct or repair it;

[0111] accommodates interchangeable auxiliary devices for use as detectors and deterrents, for example:

[0112] force detector actuators such as mechanical lever arm or pressure plates that actuate alarms or deterrents;

[0113] noise sensors that upon breach of a pre-determined threshold activate alarm or deterrent devices;

[0114] ink spray disposed after a pressure detector or light sensor is activated, e.g., a coded ink spray that adheres to skin, remains for days and may be read in either visible or ultra-violet light;

[0115] GPS to determine the location of an intrusion attempt;

[0116] razor wire and spikes attached as a physical deterrent;

[0117] triggered explosives using pressure or light sensors; irritants, such as pepper gas, released upon a pressure or light sensor activating;

[0118] electric discharge with or without activation by a sensor such as a pressure sensor further, providing that if a continuous discharge is detected de-activation may be accomplished; and

[0119] provides for adjustable de-activation delays to be incorporated in any of the detectors or deterrents.

[0120] Refer to FIG. 1. In a preferred embodiment of the present invention, the configuration consists of panels 101 connected by horizontal rods 102 to form an A-frame configuration 100. These panels 101 may be interlocking, pre-fabricated carbon steel panels 101 as shown in profile and side views, respectively, in FIGS. 2 and 3 or panels 101 constructed of materials of similar strength and cost.

[0121] Details for laying out a panel to be fabricated for use with a preferred embodiment of the present invention are depicted in FIG. 15. Shown is a flat sheet 1500 of suitable material such as sheet steel. Should the design call for top flanges 1505 and bottom flanges 1504 in addition to the interlocking longitudinal flanges 1502, 1503, these can be provided by following a design that calls for cutting sufficient material from the corners 1501 and bending the flat sheet 1500 at the heavy dotted lines 1506. Note that the final required height 103 must take into account the loss in height as a result of forming flanges 1505, 1504 along the top and bottom. Further, the top flange 1505 may be bent in either direction depending on whether a cap is to be secured internally or externally. The longitudinal flanges 1503 and 1504 are configured so that one 1503 is bent towards one face of the panel 101 and the other 1502 toward the other face, as depicted in FIG. 15, to facilitate interlocking the panels 101 while providing a smooth outer surface.

[0122] The panels 101 are connected on each side by internal connecting rods 102 that are hidden from transgressors by the outer skin 201 of the panels 101. The length of the panels 101 and connecting rods 102 can be adjusted for a barrier height 103 and angle of inclination 104 suited to a particular application. For installation along an international border, the primary barrier panels may extend 4.6 m (15 ft) in a direction inclined from vertical at an angle of 7°. This provides a tall barrier 100 with steep smooth walls that inhibit the unassisted purchase of a would-be transgressor. The panels 101 may be steel of 6.5 mm to 9.5 mm (¼ to ⅜ in) thickness and treated to prevent rust. The connecting rods 102 may be steel of 2.5 cm (1 in.) diameter, that are bent at their ends to slide into the steel cylindrical connectors 301 fitted at intervals along the height of each of the panels 101. Rebar of 2.5 cm (1 in.) diameter, appropriately bent on each end, can be used as a connecting rod 102. The frame 100 is self-supporting, requiring a trench 105 dug wide and deep enough to stabilize it at its base 106. For example, a panel 4.6 m (15 ft) long, as inclined at 7 degrees, may be set in a 0.9 m (3 ft) deep ditch about 1.6 m (5 ft) wide. This yields a barrier about 3.4 m (11 ft) above the top of the trench. Of course, a deterrent, such as wire mesh or concertina wire, may be attached to the top of the structure to increase the height.

[0123] The trench 105 is dug the required length, breadth, and depth. Refer to FIG. 4 for the A-frame 100 fabrication and installation. Emplacing the panels 101 in a trench, for example, one about 0.9 m (3 ft) deep, provides a solid foundation for a preferred embodiment of the present invention when in-fill material 108 is added. Embedding the panels 101 into the ground provides significant resistance to tipping while also deterring tunneling under it. If a preferred embodiment of the present invention is installed in loose soil, repeated long term ramming or attack by heavy equipment or tracked vehicles may tip it. Thus, as an option, an underground concrete wall or steel plate may be installed under an A-frame section 200 to further anchor it and deter tunneling. This optional underground wall can be tied into the structure of the panels 101 or connecting rods 102 before in-fill material 108 is added. This underground wall or plate may be tied into the A-frame 100 to provide greater stability. The underground walls may also be added after barrier installation.

[0124] This addition of buried anchoring structure makes it very difficult for heavy equipment or tracked vehicles to breach a preferred embodiment of the present invention. The underground wall can extend the barrier to any practical depth required and may incorporate intrusion detection devices of its own. Tunneling is impeded since the transgressor must choose to either dig deeper, penetrate it, or defeat detectors and deterrents at its top. Each of these options provides additional time for emergency responders to address any attempted transgression, especially if detectors are located at both the top of the barrier and in the underground wall.

[0125] The panels 101 and connecting rods 102 are brought to the site and distributed along the length of the intended barrier on either side. Following a four-step process 401, the panels 101 are set in the trench one across from the other and the connecting rods 102 are inserted into the respective cylindrical connectors 301. Additional panels 101 are set in the trench, connecting rods inserted and interlocked with an installed set of panels 101. This continues for the length of the barrier. After several sections are connected, the A-frame 100 becomes an enclosure for in-fill material 108 such as concrete, pumicecrete, soil, or sand. Once the A-frame 100 is set in place, the enclosure and the trench 105 are filled with the in-fill material 108. This provides optimum mass at the bottom 106 of the barrier where vehicular impact most likely will occur. If concrete or pumicecrete is poured into the enclosure, it can be left to cure with no need for surface finishing. Any attachments, such as deterrents or detectors, may be affixed to the top of the barrier by welds, epoxy, mechanical fasteners, or combinations thereof after the in-fill material 108 is emplaced.

[0126] The simplicity of the barrier design allows substitution or replacement of panels 101, connecting rods 102, and cylindrical connectors 301 by less expensive alternatives. Use of sheet pile, rebar, and nuts or pipe sections can reduce installation and maintenance costs. Sheet pile can be cut to the same length as the panels 101 and connections made at the same height. One problem with sheet pile is that the linkage process requires the sheet pile to be raised up and lowered into place. The flanges for the sheet pile are shaped so that the flanges will not overlap by pulling the ends together. This shortcoming can be overcome by using a wedge to widen the flanges so they may be pulled together to overlap. A cover shell 501, 901 for a deterrent attached to the top can be constructed so it will fit any type or size of panel, i.e., made to fit over the widest part of any panel 101.

[0127] A preferred embodiment of the present invention provides for an interconnected, overlapping detail 302 for the vertically oriented panel sides so that there are no external connections needed to be made when installing the panels, providing only a smooth surface upon which a transgressor is unable to obtain a purchase. There is no way to disconnect the joint without lifting up one of the panels against considerable friction and reaction forces. The homogenous solid in-fill material 108, such as concrete, provides an additional barrier to the weather and to intrusion since the concrete must be chipped away to provide access to each of the connectors. Stripping the panels 101 off a barrier is of little value if the barrier has a cementitious in-fill material 108 for this still leaves a “concrete pyramid” to scale.

[0128] A preferred embodiment of the present invention has a wider bottom portion that provides a lower center of gravity to prevent it's tipping even if not filled with an in-fill material 108. This design feature allows the amount and type of in-fill material 108 to vary considerably. In a fixed location requiring security in which the threat may be vehicular ramming, concrete or pumicecrete is the preferred in-fill material 108, at least for the base. For quick assembly in remote locations or for protection from enemy personnel and light vehicles in a mobile situation, the in-fill material 108 can be local soil or sand. The quick assembly and ready availability of local in-fill material 108 provides a buffer against small arms fire while also resisting tipping due to a moderate impact.

EXAMPLE 1

[0129] Assembly of the panel section of a preferred embodiment of the present invention is illustrated in FIG. 4. The components used to construct the A-frame 100 are trucked to the installation location. The components are comprised of the panels 101, the connecting rods 102, fiberboard (not separately shown) and any deterrents or detectors attached to the top. The panels 101 of this example are approximately 4.6 m (15 ft) long by 0.9 m (3 ft) wide by 9.5 mm (⅜ in.) thick but can be sized to widely varying dimensions to meet a user's specific application. Each panel 101 has a connecting bar holder 303 incorporating cylindrical connectors 301. The connecting bar holder 303 is affixed to the panel 101 via a method suitable to the material, e.g., for steel panels 101 the connecting bar holder 303 may be welded, whereas for polymer panels 101, the connecting bar holder 303 may be epoxied. Alternatively, a panel 101 may be manufactured with the connecting bar holder 303 and its cylindrical connectors 301 integral to the panel, i.e., the panel 101 may be formed in a shape that includes the connecting bar holder 303 and its cylindrical connectors 301 as a single unit panel, with no separate pieces representing the connecting bar holder 303 and the cylindrical connectors 301. The connecting bar holder 303 runs longitudinally along the center of each panel 101, providing a means for inserting and holding the connecting rods 102. Each section 200 of the barrier 100 contains two panels 102 and a number of connecting rods 102. In this example, five connecting rods 102 are used. The connecting rods 102 are sized to an appropriate length and located along the resultant A-frame 100 to provide necessary support for the intended load. A triangular piece of foam board may be fitted internally (vertically) to the A-frame section every five to ten sections to accommodate thermal expansion of in-fill material, such as concrete. The connecting rods 102 may be prefabricated to the correct size. Alternatively, if rebar is used to fabricate connecting rods 102, the rebar can be cut and bent to shape on site.

[0130] In preparation for installing the A-frame structure 100, a trench approximately 0.9 m (3 ft) deep by 1.6 m (5 ft) wide is dug. If the connecting rods 102 are to be sized onsite, the rebar is cut and ends bent for the first section before emplacing the first set of panels 101. The first pair of panels 101 are tipped vertically on end from a pre-placed stack 404. All panels 101 are identical so obtaining a matching pair of panels 101 requires tipping two panels 101 on the stack 404 from opposite ends of the stack 404. Next, the panels 101 are set in the trench 105 with the connection bar holders 303 facing. The connecting rods 102 are attached from the bottom up between the panels 101 so the lower connecting rods 102 can be used as a step to reach the higher connecting rods 102. The connecting rods may be welded or epoxied in place or simply wrapped with wire to secure them. The barrier section 200 will now stand by itself as an A-frame shaped section 200. After emplacing the first section, additional panels 101 can be tipped off the stack 404 and attached to a standing section 200 by linking the overlapping flanged ends 302. Next, this section's connecting rods 102 are attached. When an additional panel 101 is attached to a standing section 200, the additional panel 101 is pulled horizontally (parallel to the length of the barrier) to interlock the flanged ends 302 between panels 101. This interlocking of the flanged ends 302 may occur either before or after the connecting rods 102 are attached. Additional rebar can be laid on the connecting rods 102 parallel to the length of the barrier 100, to provide greater reinforcement should the in-fill material 108 comprise a cementitious solid such as concrete or pumicecrete. Further, the outside of the A-frame section 200 may be braced until such time as the cementitious infill material 108 cures. The same procedure is repeated until several A-frame sections 200 are assembled as shown in FIG. 2.

[0131] Upon emplacement of a suitable number of sections (e.g., 5-10), in-fill material 108, such as concrete, pumicecrete, sand, rip-rap, dirt or other in-fill material 108 may be poured between the panels 101 and the gap 109 between the trench 105 and the panels 101. If concrete or pumicecrete is used it can be trucked to the location and pumped to direct the flow into a desired part of the interior volume created by the A-frame section 200 as well as to the below-grade portion, i.e., the gap 109, exterior to the A-frame section 200. In remote locations the concrete or pumicecrete may be mixed onsite.

[0132] The in-fill material 108 need not be homogeneous nor all of the same type. For example, concrete may be used as a base up to a certain height and fill dirt, rip-rap, or sand used above that level in any combination of layers thereof. The in-fill material 108 may be emplaced immediately after construction of a minimum length of A-frame sections 200, e.g., in-fill material 108 may be emplaced between as few as 5-10 two-panel sections. However, even with no in-fill material 108, as is possible with at least one embodiment of the present invention, an embodiment of the present invention does provide immediate deterrence of the technologically unassisted transgressor. Once the in-fill material 108 has been added a cap may be placed over the top such as a rounded 501 or triangular 901 cover shell.

[0133] These cover shells 501, 901 fit loosely over the top of the barrier and are connected to the panels 101, preferably on the protected side, by welding, gluing (epoxying), mechanical fasteners, and combinations thereof. Connecting bars (not separately shown) can be affixed to the cover shell 501, 901 and to the panels 101 via welding, gluing (epoxying), mechanical fasteners, and combinations thereof. Further, optional deterrents or detectors, or both may be attached via various fastening methods to the panels 101 or cover shells 501, 901. These may be attached, preferably on the protected side, by welding, gluing (epoxying), mechanically fastening, and combinations thereof. The detectors and deterrents are “custom installed” to accommodate each user's unique requirements.

[0134] Detectors, such as pressure sensors with mechanical levers, may be incorporated into the shell 501, 901 by incorporating hinges 601 at the top of the shell 501, 901. The deterrents may be attached to the shell 501, 901 at any time in the cycle, e.g., they may be pre-fabricated at the factory as part of the shell 501, 901.

[0135] Refer to FIGS. 5 and 6. Deterrents may be classified as aggressive or passive. Passive deterrents (FIG. 5) serve to impede a transgressor by inconvenience or situational physical discomfort. Examples of passive deterrents are:

[0136] a round cover shell 501 that inhibits trespass by providing no purchase;

[0137] a wire mesh extension 502 on a triangular cover shell 901 that forces a transgressor to lean backwards at the top while the flush fit between the shell 901 and the wire mesh extension 502 provides no purchase until the transgressor reaches the top of the mesh at approximately 4.0-4.3 m (13-14 ft) above grade and the angled extension over the protected side of the fence makes climbing back from the protected side exceptionally difficult;

[0138] sensors 503, such as motion, audio, optical, infrared, or pressure detectors, that may activate alarms or lights and notify security forces;

[0139] dispensing devices 504 that may be affixed to the cover shell 501, 901 or the wire mesh extension 502 for spraying a non-toxic semi-permanent dye, that may be transparent normally but fluoresces under ultraviolet light or illuminates at infrared wavelengths thus enhancing security forces night vision capabilities, or is transparent when first exposed to the air, but reacts with human skin to fluoresce enabling unaided detection by security forces;

[0140] heavy vegetation 505, preferably thorny or stinging flora such as pyracantha, nettles, or both, in lieu of a cover shell, in which the top 0.6-0.9 m (2-3 ft) of in-fill material 108 may be soil with drainage provided by holes drilled in the panels 101.

[0141] Aggressive deterrents impede transgressors by causing physical harm or discomfort. FIG. 6 illustrates four aggressive deterrents: razor whip wire 601 (shown embedded in a round cover shell 501) that oscillates violently when disturbed, lacerating the transgressor; a combination 602 of razor whip wire and a wire mesh extension; a combination 603 of concertina wire and a wire mesh extension; and a combination 604 of all three.

[0142]FIG. 7 illustrates other aggressive deterrents. Non-lethal deterrents may include a pepper or other disabling gas sprayer 701, the container 702 for which is housed within the cover shell 901, or an electric fence 703 that shocks transgressor contacting it. Lethal deterrents may include mines 704 that are linked to intrusion detectors that are positioned to trigger a transgressor attempting to cross the barrier.

[0143]FIG. 8 shows a combined non-lethal deterrent system with sensor and alarm. A wire mesh extension 502 is attached flush with a triangular cover shell 901. Razor whip wire 601 is attached every 10-15 cm (4-6 in.) in the wire mesh extension 502 so repairs to or replacement of the razor whip wire 601 can be made without removing the cover shell. Razor wire 801 is emplaced on the wire mesh extension and is supported in place by the razor whip wire 601. Any attempts to trespass require the removal of the razor wire 801 and the razor whip wire 601. Razor wire 801 can be added or replaced by tossing extended rolls of razor wire 801 over the end of the wire mesh extension 502 and letting it catch on the razor whip wire 601. Maintenance can be performed behind the wire mesh extension 502 without exposing personnel to the danger on the other side, i.e., personnel obscured from direct observation are unable to be targeted accurately with thrown objects or advanced weaponry.

[0144]FIG. 16 illustrates a marker system that may be used to identify a transgressor should the barrier be breached in a location having the marker system installed. A pressurized container 1601 containing an appropriate dye, such as an ultraviolet (UV) marker spray, is installed in the interior of the barrier. The container 1601 may be accessed on the “friendly” side of the barrier for maintenance at an access point 1602. The mechanism 1604 that activates the marker system is a simple spring-activated button 1605 that is depressed by a transgressor breaching the barrier. Upon activation of the mechanism 1604, a marker spray that is not visible to the naked eye is emitted from a number of dispersing locations 1603. Transgressors can be identified passively by illuminating them with an appropriate wavelength, e.g., “black light” in the UV range will detect a person having been sprayed with a UV marker.

[0145]FIG. 9A illustrates a triangular cap that may be used with an embodiment for which one wishes to install accessories. The cap 901 is intended to slide onto flanges 902 provided on the top ends of the panels 101 for that purpose. It will be appreciated that the configuration of the cap 901, specifically the portion providing the mating surface 903 for mating with the panel flanges 902, may be formed from a single sheet of material, e.g., sheet steel may be bent to the shape in a simple and inexpensive process. FIG. 10A illustrates the same configuration for a rounded cap, providing a mating surface 1003 similar to that provided for the triangular surface. Further, caps 901, 105 formed in this manner need not be made in lengths to cover just one or two sections. Similar to forming “continuous gutter,” they may be made in a piece that is as long as the barrier itself in some cases. To provide additional security, the cap 901, 105 may be fastened to the flanges 902 from the inside using suitable means such as machine screws.

EXAMPLE 2

[0146] Another embodiment may provide a barrier suitable for use by the urban homeowner. Further, the sections need not be inclined towards each other at the same angle. FIG. 11 provides an end view of a basic configuration that might be used. FIG. 11 is designed to show panel orientation only, showing parts of the panel installed below ground 109 with certain details omitted such as the connecting rods, caps, and optional accessories. One panel 1101 may be installed in a vertical orientation along a property line of one's neighbor. To provide some additional rigidity the thin panel 1101 may have backing 1105 installed continuously or at pre-specified intervals. The other panel 101 may be installed in an orientation similar to that of Example 1. Although FIG. 11 shows the panels 101, 1101 having partially buried sections 1102, 1103, other means of securing them may be used as are detailed below.

[0147]FIG. 12 illustrates an option building on the concept of FIG. 11 that permits some vegetative ornamentation. Supplementing the design shown in FIG. 11 with additional detail, a connector 102 and its fittings 301 in the panels 101, 1101 are illustrated. Instead of a cap, this embodiment uses a planter 1401 for growing flowers 1402. The planter 1401 may be secured with tabs or other sturdy supports 1403 further using the backing 1105 on the panel 1101 to support one side. Again, this design need not require partially burying the panels as is discussed below.

EXAMPLE 3

[0148] A preferred embodiment of the present invention may be used as a temporary solution to a user's needs. For example, outdoor concerts, construction zones, police crime scenes, and special athletic or recreational activities may need controlled access. FIG. 13 provides a configuration that does not require trenching or otherwise burying the panels 101. For simplicity, the configuration of Example 1 is shown, although it is possible to use a configuration in which both panels are not inclined towards each other at a similar angle from the vertical. The panels are provided with flanges 1301 at the bottom portion. These flanges may have holes 1303 pre-drilled for insertion of stakes or pins (not separately shown) that can be driven into the ground much like tent stakes. Should this be unacceptable because of the condition of the surface (concrete) or a desire not to disturb the surface, weights 1302 can be used to cover the flanges 1301. These can be anything that suitably covers the flanges (shown in FIG. 3B in a view cut through 1-1 in FIG. 3A) with sufficient weight to provide necessary stability for the intended use. Examples, include filled sand bags, water-filled polyethylene bags sold by swimming pool supply houses, scrap metal, etc. To facilitate assembly and disassembly, the cap 501 may simply slide on over some flanges 1304 in the panels and be connected internally via quick connect plastic fittings (¼ turn) (not separately shown) similar to that used to fasten plastic pieces of automotive trim to portions of an automotive.

EXAMPLE 4

[0149] In addition to use as a barrier, a preferred embodiment of the present invention may be used for storage. Additionally, should accessories be used in a more complex embodiment, any power or connections that support the accessories may be supported by an internal arrangement to which it would be advantageous to attain ready access. For this reason, a preferred embodiment of the present invention may also include an access door 1401 as shown in FIG. 14. The door may be secured by appropriate locking means (not separately shown), including deadbolts, padlocks, electronic locks, or combinations thereof, its complexity and strength depending on the use made of the barrier. Because many embodiments will be of considerable height (1.9 m (6 ft) or more), it can be appreciated that, even with the interior partially filled with in-fill material for increasing security, there remains considerable room for storage of material that may be useful to either the home owner or the security professional in working around the barrier. For example, the homeowner may wish to store hoses, garden tools, children's toys, and even folding outdoor chairs and tables within his “fence.” By doing so, he may be able to obviate the need for a separate storage shed or rental space for seasonal items. The security professional, on the other hand, may need to access the underside of the top of the barrier to maintain, repair, or upgrade accessories installed there. Perhaps spares and tools for maintaining or repairing the barrier may be stored inside as well.

[0150] The above descriptions should not be construed as limiting the scope of the invention but as mere illustrations of preferred embodiments. Embodiments of the present invention can be applied to a wide variety of uses in a wide range of scale. For example, small sections, with little or no in-fill material, of approximately 1.9 m (6 ft) in height may be used to fence in domestic animals, such as house cats, that otherwise may be able to scale a conventional fence. At the other end of the spectrum, an international border or prison may be protected using sections of 4.6 m (15 ft) or more in height with a significant portion embedded below ground and a significant amount of in-fill material held in place by steel panels of 6.25 mm-9.5 mm (¼-⅜ in.) thickness. The scope shall be determined by appended claims as interpreted in light of the above specification. 

We claim:
 1. A section of a barrier, comprising: at least one connecting instrument having two ends; a first structure having a length measured along parallel first and second edges, a width measured along parallel third and fourth edges, and a thickness separating a first side from a second side, the area of each said side described by multiplying said width by said length, said width being at forty times said thickness and said length being at least two times said width, said first structure incorporating at least one element to which said connecting instrument may be affixed on said second side; and a second structure, similar in dimension and construction to said first structure, wherein said first and second structures are positioned on a surface, respective said second sides of said first and second structures faced one toward the other after tipping each said structure vertically upon said surface on an edge paralleling said structures' width and affixing each of said two ends of said at least one connecting instrument to corresponding said at least one elements for accepting said connecting instrument, thus preventing said first and second structures from abutting one another.
 2. The section of claim 1 in which said first and second structures are panels having at least one edge of first and second edges along said length flanged to facilitate interlocking at least one additional like section to said section of claim 1, wherein, if both said edges along said length of said panel are flanged, said flanging occurs by bending said first edge toward said one of said first and second sides and said second edge toward the other of said first and second sides, and flanging each edge continues by first bending a first width of the entire length of said first and second edges at approximately 90° and again bending a second width included as the outer portion of said first width another 90°, said second bend occurring in the same direction as said first bend so that said second bend puts said first and second edges parallel to and overlapping said first and second sides of said panel, respectively.
 3. The section of claim 1 in which said first and second structures are panels having a length of at least 0.9 m (3 ft), a width of at least 0.3 m (1 ft), and a thickness of at least 1.5 mm ({fraction (1/16)} in.).
 4. The section of claim 1 in which said at least one connecting instrument is at least one rod having two ends.
 5. The section of claim 4 in which said at least one rod has each said end bent in the same direction at approximately 90° to said at least one rod's long axis.
 6. The section of claim 1 in which said first side of said first and second structures presents a smooth surface that inhibits obtaining a purchase thereon.
 7. The section of claim 1 in which said first and second structures are manufactured of materials selected from the group consisting essentially of: steel, stainless steel, a metal alloy, aluminum, a polymer, a resin, a composite, a carbon fiber, a laminate of at least two of above said materials, and any combination thereof, wherein said materials may be treated to inhibit environmental degradation.
 8. The section of claim 1 in which each said first and second structure is symmetric in construction such that said first edge may be rotated 180° to become said second edge and said third edge may be rotated 180° to become said fourth edge, wherein said symmetric construction contributes to ease of installation of said section in a barrier comprising multiple said sections.
 9. The section of claim 1 in which at least one of each said first and second structures is inclined toward the other said structure at said structure's highest point above said surface on which it rests.
 10. The section of claim 9 in which said at least one of each said first and second structures is inclined toward the other said structure by approximately 7° from vertical.
 11. The section of claim 1 in which said first and second structures further comprise at least one reinforcing portion incorporated in said second side, said at least one reinforcing portion incorporating at least one said at least one element for accepting said connecting instrument.
 12. The section of claim 11 wherein said at least one element for accepting said at least one connecting instrument is at least one device incorporating a void, said at least one device affixed to said at least one reinforcing bar on each said first and second structures in like manner and locations so that the axis through said void is approximately parallel to said reinforcing bar, said ends of said at least one rod inserting into respective said voids of said at least one devices on each said first and second structures.
 13. The section of claim 11 in which said at least one reinforcing portion further comprises at least two reinforcing portions arranged in a line parallel to said length of said structure, said line approximately centered with respect to said width of said first and second structures.
 14. The section of claim 1 further comprising: a first horizontal flange on at least one of said third and fourth edges of each of said first and second structures, and second horizontal flanges disposed at the bottom of said cap, said second horizontal flanges sized to lock under said first horizontal flanges when installing said cap, wherein should only one of said third and fourth edges comprise said first horizontal flange, and said cap with said second horizontal flanges is to be installed on said section, then said only one of said third and fourth edges comprising said first horizontal flange should be oriented to be at the top of said section.
 15. The section of claim 1 further comprising a cap affixed to and covering said edges of said first and second structures that define the highest point of each said structures above said surface, wherein said cap may have auxiliary devices affixed thereto.
 16. The section of claim 15 in which said cap presents a rounded surface covering said edges, wherein said rounded surface decreases the opportunity to establish a purchase on said section, and wherein said rounded surface may be modified for installation of said auxiliary devices.
 17. The section of claim 15 in which said cap presents a shape pointed at said cap's apex, said cap covering said edges, wherein said shape pointed at said cap's apex presents at least one flat surface upon which said auxiliary devices may be mounted.
 18. The section of claim 15 in which said auxiliary devices are selected from the group consisting essentially of: detectors, alarms, lighting, dye markers, passive deterrents, and active deterrents.
 19. The section of claim 18 in which said detectors may operate to detect disturbances in operating ranges consisting essentially of: audio frequencies, video frequencies, visible wavelengths, infrared wavelengths, ultraviolet wavelengths, radio frequencies, pressure, and combinations thereof.
 20. The section of claim 18 in which said passive deterrents are selected from the group consisting essentially of wire mesh fencing, barbed wire, razor whip wire, concertina wire, and combinations thereof.
 21. The section of claim 18 in which said active deterrents are selected from the group consisting essentially of: sensor-activated chemical sprays, sensor-activated munitions, electrically-charged wires, and high-powered electromagnetic devices.
 22. The section of claim 18 in which said dye markers are selected from the group consisting essentially of: fluorescing stains facilitating unaided visibility at night, fluorescent dyes visible under ultraviolet light, and dyes visible by the use of infrared lenses.
 23. The section of claim 1 in which said first and second structures may comprise sheet pile to which at least one reinforcing bar is added in like manner on each said second side of said first and second structures and parallel to said length of said first and second structures, wherein said at least one element for accepting said at least one connecting instrument is at least one device incorporating a void, said at least one device affixed to said at least one reinforcing bar on each said first and second structures in like manner and locations so that the axis through said void is approximately parallel to said reinforcing bar, said ends of said at least one rod inserting into respective said voids of said at least one device on each said first and second structures, and wherein said first and second edges of said sheet pile are made suitable, if needed, for joining additional sections by using a wedge to widen said longitudinal flanges of said first and second edges so said longitudinal flanges of said additional sections may be interlocked by pulling in a direction generally parallel to said surface.
 24. The section of claim 23 in which said rod may be fabricated from rebar and said device incorporating a void is selected from the group consisting of a nut, a section of pipe, at least one washer, an eyebolt, and combinations thereof.
 25. A barrier, comprising: at least one section comprising: at least one connecting instrument having two ends; a first structure having a length measured along parallel first and second edges, a width measured along parallel third and fourth edges, and a thickness separating a first side from a second side, the area of each said side described by multiplying said width by said length, said width being at least forty times said thickness and said length being at least two times said width, said first structure incorporating at least one element to which said connecting instrument may be affixed on said second side; and a second structure, similar in dimension and construction to said first structure, wherein said first and second structures are positioned on a surface, respective said second sides of said first and second structures faced one toward the other after tipping each said structure vertically upon said surface on an edge paralleling said structures' width and affixing each of said two ends of said at least one connecting instrument to corresponding said at least one elements for accepting said connecting instrument, thus preventing said first and second structures from abutting one another, and wherein, if more than one section is used to form said barrier, each said section interlocks with neighboring said sections to form said barrier.
 26. The barrier of claim 25 in which said first and second structures are panels having at least one edge of first and second edges along said length flanged to facilitate interlocking at least one additional like section to said section comprising connected said first and second structures, wherein, if both said edges along said length of said panel are flanged, said flanging is performed by bending said first edge toward said one of said first and second sides and said second edge toward the other of said first and second sides, and flanging each edge continues by first bending a first width of the entire length of said first and second edges at approximately 90° and again bending a second width of said entire length of said first and second edges, said second width included as the outer portion of said first width, another 90°, said second bend occurring in the same direction as said first bend so that said second bend puts said first and second edges parallel to and overlapping said first and second sides of said panel, respectively.
 27. The barrier of claim 25 in which said first and second structures are panels having a length of at least three feet, a width of at least one foot, and a thickness of at least 1.5 mm ({fraction (1/16)} in.).
 28. The barrier of claim 25 in which said first side of said structures presents a smooth surface that inhibits obtaining a purchase thereon.
 29. The barrier of claim 25 in which said first and second structures are manufactured of materials selected from the group consisting essentially of: steel, stainless steel, a metal alloy, aluminum, a polymer, a resin, a composite, a carbon fiber, a laminate of at least two of above said materials, and any combination thereof, wherein said materials may be treated to inhibit environmental degradation.
 30. The barrier of claim 25 in which said first and second structures further comprise at least one reinforcing portion incorporated in said second side, said at least one reinforcing portion incorporating at least one said at least one element for accepting said connecting instrument.
 31. The barrier of claim 30 in which said at least one reinforcing portion further comprises at least two reinforcing portions arranged in a line parallel to said length of said structure, said line approximately centered with respect to said width of said first and second structures.
 32. The barrier of claim 25 in which each said first and second structure is symmetric in construction such that said first edge may be rotated 180° to become said second edge and said third edge may be rotated 180° to become said fourth edge, wherein said symmetric construction contributes to ease of installation of said section in a barrier comprising multiple said sections.
 33. The barrier of claim 25 in which each said first and second structure is inclined toward the other said structure at its highest point above said surface on which it rests.
 34. The barrier of claim 33 in which each said first and second structure is inclined toward the other said structure by approximately 7° from vertical.
 35. The barrier of claim 25 further comprising a cap affixed to and covering said edges of said first and second structures that define the highest point of each said structures above said surface, wherein said barrier may be modified for installation of auxiliary devices.
 36. The barrier of claim 35 in which said cap presents a rounded surface covering said edges, wherein said rounded surface decreases the opportunity to establish a purchase on said section, and wherein said rounded surface may be modified for installation of said auxiliary devices.
 37. The barrier of claim 35 in which said cap presents a shape pointed at said cap's apex, said cap covering said edges, wherein said shape pointed at said cap's apex presents at least one flat surface upon which said auxiliary devices may be mounted.
 38. The barrier of claim 35 in which said auxiliary devices are selected from the group consisting essentially of: detectors, alarms, lighting, dye markers, passive deterrents, and active deterrents.
 39. The barrier of claim 38 in which said detectors may operate to detect disturbances in operating ranges consisting essentially of: audio frequencies, video frequencies, visible wavelengths, infrared wavelengths, ultraviolet wavelengths, radio frequencies, pressure, mass, and combinations thereof.
 40. The barrier of claim 38 in which said passive deterrents are selected from the group consisting essentially of wire mesh fencing, barbed wire, razor whip wire, concertina wire, and combinations thereof.
 41. The barrier of claim 38 in which said active deterrents are selected from the group consisting essentially of: sensor-activated chemical sprays, sensor-activated munitions, electrically-charged wires, and high-powered electromagnetic devices.
 42. The barrier of claim 38 in which said dye markers are selected from the group consisting essentially of: fluorescing stains facilitating unaided visibility at night, fluorescent dyes visible under ultraviolet light, and dyes visible by the use of infrared lenses.
 43. The barrier of claim 25 in which said at least one connecting instrument is at least one rod.
 44. The barrier of claim 43 in which each end of said at least one rod is bent in the same direction at approximately 90° to said at least one rod's long axis.
 45. The barrier of claim 25 wherein said at least one element for accepting said at least one connecting instrument is at least one device incorporating a void, said at least one device affixed to said at least one reinforcing bar on each said first and second structures in like manner and locations so that the axis through said void is approximately parallel to said reinforcing bar, said ends of said at least one rod inserting into respective said voids of said at least one devices on each said first and second structures.
 46. The barrier of claim 25 in which said first and second structures may comprise sheet pile to which at least one reinforcing bar is added in like manner on said second side of each said first and second structures and parallel to said length of said first and second structures, wherein said at least one element for accepting said at least one connecting instrument is at least one device incorporating a void, said at least one device affixed to said at least one reinforcing bar on each said first and second structures in like manner and locations so that the axis through said void is approximately parallel to said reinforcing bar, said ends of said at least one rod inserting into respective said voids of said at least one devices on each said first and second structures, and wherein said first and second edges of said sheet pile are made suitable, if needed, for joining additional sections by using a wedge to widen said longitudinal flanges of said first and second edges so said longitudinal flanges of said additional sections may be interlocked by pulling in a direction generally parallel to said surface.
 47. The barrier of claim 46 in which said rod may be fabricated from rebar and said device incorporating a void is selected from the group consisting of a nut, a short section of pipe, at least one washer, an eyebolt, and combinations thereof.
 48. The barrier of claim 25 further comprising in-fill material, wherein said in-fill material is placed between said first and second structures after assembly of said first and second structures as at least one section.
 49. The barrier of claim 48 in which said in-fill material is selected from the group consisting essentially of: a solidified mixture, concrete, pumicecrete, dirt, stabilized earth, sand, rock, rip-rap, rubble, inorganic material, aqueous solutions, and any combination thereof.
 50. The barrier of claim 25 in which at least part of said barrier is disposed below grade.
 51. The barrier of claim 50 in which said at least part of said barrier disposed below grade is at least 10% of the installed height of said barrier.
 52. The barrier of claim 25 further comprising: a first horizontal flange on at least one of said third and fourth edges of each of said first and second structures, and second horizontal flanges disposed at the bottom of said cap, said second horizontal flanges sized to lock under said first horizontal flanges when installing said cap, wherein should only one of said third and fourth edges comprise said first horizontal flange, and said cap with said second horizontal flanges is to be installed on said section, then said only one of said third and fourth edges comprising said first horizontal flange should be oriented to be at the top of said barrier.
 53. A method for establishing a flexible capability to control activity by using at least a physical barrier, comprising: defining existing and future requirements for said capability; developing a design with built-in flexibility to meet said existing and future requirements; acquiring at least those materials for producing said design to meet existing requirements; scheduling resources to build to said design; building to said design; acquiring resources to maintain said capability; updating needs for said capability as necessary; and upgrading said capability based on said updated needs, said built-in flexibility, and currently available technology, wherein said capability is used to promote any combination of the following: safety, security, privacy, discipline, and order.
 54. The method of claim 53 in which said physical barrier comprises: at least one section comprising: at least one connecting instrument having two ends; a first structure having a length measured along parallel first and second edges, a width measured along parallel third and fourth edges, and a thickness separating a first side from a second side, the area of each said side described by multiplying said width by said length, said width being at least 40 times said thickness and said length being at least two times said width, said first structure incorporating at least one element to which said connecting instrument may be affixed on said second side; and a second structure, similar in dimension and construction to said first structure, wherein said first and second structures are positioned on a surface, respective said second sides of said first and second structures faced one toward the other after tipping each said structure vertically upon said surface on an edge paralleling said structures' width and affixing each of said two ends of said at least one connecting instrument to corresponding said at least one elements for accepting said connecting instrument, thus preventing said first and second structures from abutting one another, and wherein, if more than one section is used to form said barrier, each said section interlocks with neighboring said sections to form said barrier.
 55. A method for constructing a barrier having multiple sections, comprising: building a first section by: providing a first and second panel, each having a first side and a second side, first and second edges along a longest dimension, third and fourth edges along a next longest dimension, said panels described by a length, a width and a thickness, said second side of each said first and second panel provided with at least one receptor, both said first and second edges of each said first and second panel being flanged in opposing directions; providing at least one connector to be affixed to said at least one receptors; orienting said first and second panels so that respective said second sides of said panels face each other; orienting said facing first and second panels vertically with respect to said panels' longest dimension along a line on which said barrier is to be constructed, tipping the top of said vertically oriented first and second panels one toward the other so that said at least one connector may be fit into said at least one receptor on each said panel; fitting said at least one connectors into said at least one receptor on each said first and second panels, said connector serving at least to keep said first and second panels from abutting; wherein a first section having the shape of an A-frame is constructed; building a second section similar to said first section and interconnecting said second section with said first section by: providing third and fourth panels of similar construction and dimension to said first and second panels; providing at least one connector to be affixed to said at least one receptors of said third and fourth panels, said connector serving at least to keep said third and fourth panels from abutting; interlocking an appropriate edge of a third panel by fitting said third panel to said first panel along said flanged edge having the longest dimension of said first panel of said first section and pulling said third panel roughly horizontally with respect to the surface upon which said first section rests; interlocking an appropriate edge of a fourth panel by fitting said fourth panel to said second panel along said flanged edge having the longest dimension of said second panel of said first section and pulling said fourth panel roughly horizontally with respect to the surface upon which said first section rests; and fitting said at least one connectors into said at least one receptors on each of said third and fourth panels, wherein additional length may be added to said barrier by fitting additional sections to said barrier in the manner of fitting said second section.
 56. The method of claim 55 in which said sections are provided with a cap that encloses the top of each A-frame section.
 57. The method of claim 55 in which the space created internally in each said section through use of said connectors is filled at least partially with material.
 58. The method of claim 55 in which said barrier is disposed in a trench for at least the first 10% of its height, wherein said trench is backfilled after constructing said sections.
 59. The method of claim 55 in which auxiliary devices are installed near the top of said barrier, said auxiliary devices selected from the group consisting essentially of: detectors, alarms, lighting, dye markers, passive deterrents, and active deterrents.
 60. The method of claim 55 further comprising providing a subterranean wall constructed vertically along the length of said barrier and below the lowest point of resting of said barrier sections. 